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All specications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated.
Switching Power Supplies
TOM Series 12, 25 Watt
Input Specifications
Input voltage range 85 – 264 VAC
Input frequency 47 – 63 Hz
Input current at full load Vin = 115 VAC / 230 VAC 12 W models: 220 mA / 150 mA max.
25 W models: 550 mA / 300 mA max.
Leakage current 0.75 mA max. (at 230 VAC)
Output Specifications
Voltage set accuracy ±5%
Regulation – Input variation <20 mV
– Load variation 12 W (0 – 100%) <50 mV
– Load variation 25 W (0 – 100%) <100 mV
Ripple and noise (20Mhz Bandwidth) 12 W models: <150 mVp-p
25 W models: <200 mVp-p
Overload protection by current limit at >105 % Iout nom.
Current limitation foldback (automatic recovery)
Capacitive load 10’000 µF max.
General Specifications
Temperature ranges – Operating –10°C to +70°C ambient temp. max.
– Derating: (25W) 5 Vout models: 3 %/K above +45°C
all other models: 5 %/K above +55°C
– Storage (non operating) –20°C to +85 °C
– safety approval reference temperature 25°C
Temperature coefficient 0.02 %/K
Efficiency 5.0 Vout models: 75 % typ.
all other models: 80 % typ.
Humidity (non condensing) 20 – 85 % rel H max.
Switching frequency 100 kHz typ. (puls width modulation)
Hold-up time – Vin = 115 VAC 10 ms typ.
– Vin = 230 VAC 100 ms typ.
Rise-up time – Vin = 115 VAC <200 ms
– Vin = 230 VAC <300 ms
Isolation Voltage – Input / Output 3000 VAC
– Input / Field Ground 2000 VAC
– Output / Field Ground 500 VAC
Isolation Resistance (at 500 VDC) 100 Mohm min.
Electromagnetic compatibility (EMC), Emissions
– Conducted input RI suppression EN 55022, class B, FCC part 15, level B
Safety standards IEC/EN 60950-1, UL/cUL 60950-1
Safety approvals – UL/cUL 60950-1 www.ul.com -> certifications -> File e141988
– CB report according to IEC 60950-1
www.tracopower.com/products/tom121-cb.pdf
www.tracopower.com/products/tom122-cb.pdf
www.tracopower.com/products/tom251-cb.pdf
Reliability, calculated MTBF at +25°C >2’800’000 h according to IEC 61709